分数简便计算怎么做?(7/8+13/16)÷13/161.8×0.72+1.28×1.85×4/5÷5×4/53×17÷17÷3(4/9+2/41)×9+23÷41

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分数简便计算怎么做?(7/8+13/16)÷13/161.8×0.72+1.28×1.85×4/5÷5×4/53×17÷17÷3(4/9+2/41)×9+23÷41
分数简便计算怎么做?
(7/8+13/16)÷13/16
1.8×0.72+1.28×1.8
5×4/5÷5×4/5
3×17÷17÷3
(4/9+2/41)×9+23÷41

分数简便计算怎么做?(7/8+13/16)÷13/161.8×0.72+1.28×1.85×4/5÷5×4/53×17÷17÷3(4/9+2/41)×9+23÷41
(7/8+13/16)÷13/16
=(7/8+13/16)×16/13
=7/8×16/13+13/16×16/13
=14/13+1
=27/13
1.8×0.72+1.28×1.8
=1.8×(0.72+1.28)
=1.8×2
=3.6
5×4/5×4/5
=(5÷5)×(4/5×4/5)
=16/25
3×17÷17÷3
=(3÷3)×(17÷17)
=1
(4/9+2/41)×9+23÷41
=4/9×9+2/41×9+23/41
=4+(18/41+23/41)
=4+1
=5